<template>
  <div class="login box">
    <img src="/static/image/Loginbg.3377d0c.jpg" alt="">
    <div class="login">
      <div class="login-title">
        <img src="/static/image/Logotitle.1ba5466.png" alt="">
        <p>帮助有志向的年轻人通过努力学习获得体面的工作和生活!</p>
      </div>
      <div class="login_box">
        <div class="title">
          <span @click="login_type=0">密码登录</span>
          <span @click="login_type=1">短信登录</span>
        </div>
        <div class="inp" v-if="login_type==0">
          <input v-model="username" type="text" placeholder="用户名 / 手机号码" class="user">
          <input v-model="password" type="password" name="" class="pwd" placeholder="密码">
          <div id="popup-captcha"></div>
          <div class="rember">
            <p>
              <input type="checkbox" v-model="remember" class="no" name="a"/>
              <span>记住密码</span>
            </p>
            <p>忘记密码</p>
          </div>
          <button @click="get_captcha" class="login_btn">登录</button>
          <p class="go_login">没有账号 <span>立即注册</span></p>
        </div>
        <div class="inp" v-show="login_type==1">
          <input v-model="username" type="text" placeholder="手机号码" class="user">
          <input v-model="password" type="text" class="pwd" placeholder="短信验证码">
          <button id="get_code">获取验证码</button>
          <button class="login_btn">登录</button>
          <p class="go_login">没有账号 <span>立即注册</span></p>
        </div>
      </div>
    </div>
  </div>
</template>

<script>
    export default {
        name: 'Login',
        data() {
            return {
                login_type: 0,
                username: "",
                password: "",
                remember: false,
            }
        },

        methods: {
            loginHandler() {

                this.$axios.post(`${this.$settings.Host}/users/login/`, {
                    username: this.username,
                    password: this.password,
                }).then(response => {
                    console.log(response.data.token);
                    // 判断用户是否勾选了记住密码
                    if (this.remember) {
                        // 记住密码
                        sessionStorage.clear();
                        localStorage.user_token = response.data.token;
                        localStorage.user_id = response.data.id;
                        localStorage.user_name = response.data.username;
                    } else {
                        // 不记住密码
                        localStorage.clear();
                        sessionStorage.user_token = response.data.token;
                        sessionStorage.user_id = response.data.id;
                        sessionStorage.user_name = response.data.username;
                    }
                    let self = this
                    this.$alert('欢迎回来', '路飞学城', {
                        callback() {
                            // self.$router.push("/home") // 使用vue跳转到指定页面
                            self.$router.go(-1) // 跳转到之前登录页
                        }
                    })
                }).catch(error => {
                    if (error.response.status === 400) {
                        this.$message.error('用户名或密码错误！！！')
                    } else {
                        this.$message.error('未知错误')
                    }
                })
            },
            get_captcha() {
                // 判断用户是否输入了密码
                if (this.username.length<1 || this.password.length<1){
                    this.$message.error('用户名或密码不能为空');
                    return ;
                }

                //获取行为验证流水号
                this.$axios.get(`${this.$settings.Host}/users/captcha`).then(response => {
                    let data = JSON.parse(response.data); //转换成json格式
                    //请求成功
                    // 使用initGeetest接口
                    // 参数1：配置参数
                    // 参数2：回调，回调的第一个参数验证码对象，之后可以使用它做appendTo之类的事件
                    initGeetest({
                        gt: data.gt,
                        challenge: data.challenge,
                        product: "embed", // 产品形式，包括：float，embed，popup。注意只对PC版验证码有效
                        offline: !data.success // 表示用户后台检测极验服务器是否宕机，一般不需要关注
                        // 更多配置参数请参见：http://www.geetest.com/install/sections/idx-client-sdk.html#config
                    }, this.handlerEmbed); //
                }).catch(error => {
                    //请求失败
                    this.$message.error('行为验证码生成失败')
                })
            },
            handlerEmbed(captchaObj) {
                // 进行二次验证
                // 成功的回调
                let self = this;
                captchaObj.onSuccess(function () {
                    var validate = captchaObj.getValidate();
                    self.$axios.post(`${self.$settings.Host}/users/captcha/`, {
                        geetest_challenge: validate.geetest_challenge,
                        geetest_validate: validate.geetest_validate,
                        geetest_seccode: validate.geetest_seccode
                    }).then(response => {
                        if (response.data.status) {
                            //验证成功，提交用户名和密码
                            self.loginHandler();
                        } else {
                            alert("验证失败,请重试")
                        }
                    });
                })


                // 先删除原来的内容
                document.getElementById("popup-captcha").innerHTML = "";
                // 将验证码加到id为captcha的元素里
                captchaObj.appendTo("#popup-captcha");


            },
        }
    }
</script>

<style scoped>

  .box {
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
  }

  .box img {
    width: 100%;
    min-height: 100%;
  }

  .box .login {
    position: absolute;
    width: 500px;
    height: 400px;
    left: 0;
    margin: auto;
    right: 0;
    bottom: 0;
    top: -338px;
  }

  .login .login-title {
    width: 100%;
    text-align: center;
  }

  .login-title img {
    width: 190px;
    height: auto;
  }

  .login-title p {
    font-size: 18px;
    color: #fff;
    letter-spacing: .29px;
    padding-top: 10px;
    padding-bottom: 50px;
  }

  .login_box {
    width: 400px;
    height: auto;
    background: #fff;
    box-shadow: 0 2px 4px 0 rgba(0, 0, 0, .5);
    border-radius: 4px;
    margin: 0 auto;
    padding-bottom: 40px;
  }

  .login_box .title {
    font-size: 20px;
    color: #9b9b9b;
    letter-spacing: .32px;
    border-bottom: 1px solid #e6e6e6;
    display: flex;
    justify-content: space-around;
    padding: 50px 60px 0 60px;
    margin-bottom: 20px;
    cursor: pointer;
  }

  .login_box .title span:nth-of-type(1) {
    color: #4a4a4a;
    border-bottom: 2px solid #84cc39;
  }

  .inp {
    width: 350px;
    margin: 0 auto;
  }

  .inp input {
    outline: 0;
    width: 100%;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
  }

  .inp input.user {
    margin-bottom: 16px;
  }

  .inp .rember {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    margin-top: 10px;
  }

  .inp .rember p:first-of-type {
    font-size: 12px;
    color: #4a4a4a;
    letter-spacing: .19px;
    margin-left: 22px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    /*position: relative;*/
  }

  .inp .rember p:nth-of-type(2) {
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .19px;
    cursor: pointer;
  }

  .inp .rember input {
    outline: 0;
    width: 30px;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
  }

  .inp .rember p span {
    display: inline-block;
    font-size: 12px;
    width: 100px;
    /*position: absolute;*/
    /*left: 20px;*/

  }

  #geetest {
    margin-top: 20px;
  }

  .login_btn {
    width: 100%;
    height: 45px;
    background: #84cc39;
    border-radius: 5px;
    font-size: 16px;
    color: #fff;
    letter-spacing: .26px;
    margin-top: 30px;
  }

  .inp .go_login {
    text-align: center;
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .26px;
    padding-top: 20px;
  }

  .inp .go_login span {
    color: #84cc39;
    cursor: pointer;
  }
</style>
